<template>
    <div class="container">
      <section class="stage stage-1">

      </section>
    </div>
  </template>
  
  <script>
  export default {
    
  }
  </script>
  
  <style lang="less" scoped>
  .container{
    display: flex;
    justify-content: center;
    height: 250px;
    width: 100%;
  }
  .ball {
    display: inline-block;
    width: 100%;
    height: 100%;
    border-radius: 100%;
    position: relative;
    opacity: .8;
    background: radial-gradient(circle at bottom, #81e8f6, #76deef 10%, #055194 80%, #062745 100%); 
    transform: translate(-50%,-50%);
    font-size: 36px;
    font-weight: bold;
    color: #f23340;
    display: flex;
    align-items: center;
    justify-content: center;
  }
    .ball:before {
      content: "";
      position: absolute;
      top: 1%;
      left: 5%;
      width: 90%;
      height: 90%;
      border-radius: 100%;
      background: radial-gradient(circle at top, white, rgba(255, 255, 255, 0) 58%);
      -webkit-filter: blur(5px);
      filter: blur(5px);
      z-index: 2; 
    }
    .ball:after {
      content: "";
      position: absolute;
      display: none;
      top: 5%;
      left: 10%;
      width: 80%;
      height: 80%;
      border-radius: 100%;
      -webkit-filter: blur(1px);
      filter: blur(1px);
      z-index: 2;
      -webkit-transform: rotateZ(-30deg);
      transform: rotateZ(-30deg); 
    }
    .ball .shadow {
      position: absolute;
      width: 100%;
      height: 100%;
      background: radial-gradient(circle, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.1) 40%, rgba(0, 0, 0, 0) 50%);
      -webkit-transform: rotateX(90deg) translateZ(-160px);
      transform: rotateX(90deg) translateZ(-160px);
      z-index: 1; 
    }
    .ball.plain {
      background: black; 
    }
    .ball.plain:before, .ball.plain:after {
      display: none; 
    }
    .ball.bubble {
      background: radial-gradient(circle at 50% 55%, rgba(240, 245, 255, 0.9), rgba(240, 245, 255, 0.9) 40%, rgba(225, 238, 255, 0.8) 60%, rgba(43, 130, 255, 0.4));
      -webkit-animation: bubble-anim 2s ease-out infinite;
      animation: bubble-anim 2s ease-out infinite; 
    }
    .ball.bubble:before {
      -webkit-filter: blur(0);
      filter: blur(0);
      height: 80%;
      width: 40%;
      background: radial-gradient(circle at 130% 130%, rgba(255, 255, 255, 0) 0, rgba(255, 255, 255, 0) 46%, rgba(255, 255, 255, 0.8) 50%, rgba(255, 255, 255, 0.8) 58%, rgba(255, 255, 255, 0) 60%, rgba(255, 255, 255, 0) 100%);
      -webkit-transform: translateX(131%) translateY(58%) rotateZ(168deg) rotateX(10deg);
      transform: translateX(131%) translateY(58%) rotateZ(168deg) rotateX(10deg); 
    }
    .ball.bubble:after {
      display: block;
      background: radial-gradient(circle at 50% 80%, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0) 74%, white 80%, white 84%, rgba(255, 255, 255, 0) 100%); 
    }
    .stage {
      width: 150px;
      height: 150px;
      display: inline-block;
      -webkit-perspective: 1200px;
      -moz-perspective: 1200px;
      -ms-perspective: 1200px;
      -o-perspective: 1200px;
      perspective: 1200px;
      -webkit-perspective-origin: 50% 50%;
      -moz-perspective-origin: 50% 50%;
      -ms-perspective-origin: 50% 50%;
      -o-perspective-origin: 50% 50%;
      perspective-origin: 50% 50%;
      .name{
        color: rgba(255,255,255,.8);
        font-size: 16px;
        text-align: center;
        width: 100%;
        margin-left: 40px;
      }
    }
    .stage-2{
      margin: 0 60px;
    }
    .stage-3{
      margin-right: 80px;
    }
    body {
      width: 300px;
      margin: 20px auto;
      background: linear-gradient(to bottom, rgba(100, 100, 100, 0.2) 0%, rgba(255, 255, 255, 0.5) 40%, #ffffff 100%);
      background-repeat: no-repeat;
    }
  
    @-webkit-keyframes bubble-anim {
      0% {
        -webkit-transform: scale(1);
        transform: scale(1); }
  
      20% {
        -webkit-transform: scaleY(0.95) scaleX(1.05);
        transform: scaleY(0.95) scaleX(1.05); }
  
      48% {
        -webkit-transform: scaleY(1.1) scaleX(0.9);
        transform: scaleY(1.1) scaleX(0.9); }
  
      68% {
        -webkit-transform: scaleY(0.98) scaleX(1.02);
        transform: scaleY(0.98) scaleX(1.02); }
  
      80% {
        -webkit-transform: scaleY(1.02) scaleX(0.98);
        transform: scaleY(1.02) scaleX(0.98); }
  
      97%, 100% {
        -webkit-transform: scale(1);
        transform: scale(1); } 
    }
  
    @keyframes bubble-anim {
      0% {
        -webkit-transform: scale(1);
        transform: scale(1); }
  
      20% {
        -webkit-transform: scaleY(0.95) scaleX(1.05);
        transform: scaleY(0.95) scaleX(1.05); }
  
      48% {
        -webkit-transform: scaleY(1.1) scaleX(0.9);
        transform: scaleY(1.1) scaleX(0.9); }
  
      68% {
        -webkit-transform: scaleY(0.98) scaleX(1.02);
        transform: scaleY(0.98) scaleX(1.02); }
  
      80% {
        -webkit-transform: scaleY(1.02) scaleX(0.98);
        transform: scaleY(1.02) scaleX(0.98); }
  
      97%, 100% {
        -webkit-transform: scale(1);
        transform: scale(1); 
        } 
    }
  </style>
  